// 1.使用CommonJS的模块化规范
const { add, mul } = require("./mathUtils.js");

console.log(add(20, 30));
console.log(mul(20, 30));

//2.使用ES6的模块化规范
import { name, age, height } from "./info";

console.log(name);
console.log(age);
console.log(height);
